kdecore Library API Documentation

KMacroExpanderBase Class Reference

Abstract base class for the worker classes behind the KMacroExpander namespace. More...

#include <kmacroexpander.h>

List of all members.

Public Methods

 KMacroExpanderBase (QChar c= '%')
virtual ~KMacroExpanderBase ()
void expandMacros (QString &str)
bool expandMacrosShellQuote (QString &str)
void setEscapeChar (QChar c)
QChar escapeChar () const

Protected Methods

virtual int expandPlainMacro (const QString &str, uint pos, QStringList &ret)
virtual int expandEscapedMacro (const QString &str, uint pos, QStringList &ret)


Detailed Description

Abstract base class for the worker classes behind the KMacroExpander namespace.

Definition at line 36 of file kmacroexpander.h.


Constructor & Destructor Documentation

KMacroExpanderBase::KMacroExpanderBase QChar    c = '%'
 

Constructor.

Parameters:
c  escape char indicating start of macros, or QChar::null for none

Definition at line 28 of file kmacroexpander.cpp.

KMacroExpanderBase::~KMacroExpanderBase   [virtual]
 

Destructor.

Definition at line 33 of file kmacroexpander.cpp.


Member Function Documentation

void KMacroExpanderBase::expandMacros QString   str
 

Perform safe macro expansion (substitution) on a string.

Parameters:
str  the string in which macros are expanded in-place

Definition at line 49 of file kmacroexpander.cpp.

References expandEscapedMacro(), expandPlainMacro(), QStringList::join(), QString::length(), QString::replace(), and QString::unicode().

bool KMacroExpanderBase::expandMacrosShellQuote QString   str
 

Same as above, but always starts at position 0, and unmatched closing parens and braces are treated as errors.

Definition at line 280 of file kmacroexpander.cpp.

References QString::length().

void KMacroExpanderBase::setEscapeChar QChar    c
 

Set the macro escape character.

Parameters:
c  escape char indicating start of macros, or QChar::null if none

Definition at line 38 of file kmacroexpander.cpp.

QChar KMacroExpanderBase::escapeChar  
 

Obtain the macro escape character.

Returns:
escape char indicating start of macros, or QChar::null if none

Definition at line 44 of file kmacroexpander.cpp.

int KMacroExpanderBase::expandPlainMacro const QString   str,
uint    pos,
QStringList   ret
[protected, virtual]
 

This function is called for every single char within the string if the escape char is QChar::null.

It should determine whether the string starting at pos within str is a valid macro and return the substitution value for it if so.

Parameters:
str  the input string
pos  the offset within str
ret  return value: the string to substitute for the macro
Returns:
if greater than zero, the number of chars at pos in str to substitute with ret (i.e., a valid macro was found). if less than zero, subtract this value from pos (to skip a macro, i.e., substitute it with itself). zero requests no special action.

Definition at line 286 of file kmacroexpander.cpp.

Referenced by expandMacros().

int KMacroExpanderBase::expandEscapedMacro const QString   str,
uint    pos,
QStringList   ret
[protected, virtual]
 

This function is called every time the escape char is found if it is not QChar::null.

It should determine whether the string starting at pos witin str is a valid macro and return the substitution value for it if so.

Parameters:
str  the input string
pos  the offset within str. Note that this is the position of the occurrence of the escape char
ret  return value: the string to substitute for the macro
Returns:
if greater than zero, the number of chars at pos in str to substitute with ret (i.e., a valid macro was found). if less than zero, subtract this value from pos (to skip a macro, i.e., substitute it with itself). zero requests no special action.

Definition at line 289 of file kmacroexpander.cpp.

Referenced by expandMacros().


The documentation for this class was generated from the following files:
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This file is part of the documentation for kdecore Library Version 3.2.2.
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Generated on Thu Apr 22 14:23:08 2004 by doxygen 1.2.18 written by Dimitri van Heesch, © 1997-2003